For drilling in brick, cinder block and tile Use with corded and cordless rotary drills Drills twice as fast as standard masonry bits Carbide tips provide long bit life Bosch designs the toughest, longest lasting, highest quality drill bits in the industry. Whether you're drilling through wood, metal, glass, tile, brick, plastic, concrete or any other material, Bosch has the bit to fit the job. Double Flute Masonry Drill Bits are to be used in rotary drills only. These bits are not designed for use in hammer drills.
These are NOT FOR HAMMER MODE. This is the Bosch BM 5000 14 Piece Rotary Drill Masonry Bit set, and there is a warning on the cover of the plastic case:"Not for Hammer Mode""No use en taladros de percusion""Ne dans des marteuax perforateurs"So while there are lots of hammer drills in the product associations, do not be confused: It is not for use in Hammer Mode. Some other fun facts from the box:-Maximum no load speed 2000 RPM.-Made in China..